GATE Mammalian Cell Biology, Human Anatomy and Physiology: Respiratory System – Previous Year Questions

5 GATE previous year questions on Respiratory System (Mammalian Cell Biology, Human Anatomy and Physiology, Biomedical Engineering) with answers and explanations, from every paper.

1. GATE 2022 BM Q62 (2 marks, Numerical answer) – Breathing rate is 18/min, tidal volume 500 mL and anatomical dead space 150 mL. Heart rate is 120/min and stroke volume 50 mL. Find alveolar…
2. GATE 2023 BM Q50 (2 marks, Multiple select) – Which relations between lung-volume measurements are correct?
3. GATE 2023 BM Q60 (2 marks, Numerical answer) – Inspired air contains 20% oxygen and expired air 16%. A person breathes 12 times per minute with tidal volume 500 mL and cardiac output 5 L/min. Find…
4. GATE 2026 BM Q31 (1 mark, Multiple choice) – Which epithelial type primarily lines the tracheal mucosa of a healthy adult human?
5. GATE 2026 BM Q35 (1 mark, Numerical answer) – Vital capacity is 4600 mL, tidal volume 500 mL, and inspiratory reserve volume 2500 mL. Find expiratory reserve volume in mL, rounded to the nearest…